Stem Cell Reports最新文献

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Genome-wide screening reveals essential roles for HOX genes and imprinted genes during caudal neurogenesis of human embryonic stem cells. 全基因组筛选揭示了 HOX 基因和印记基因在人类胚胎干细胞尾部神经发生过程中的重要作用。
IF 5.9 2区 医学
Stem Cell Reports Pub Date : 2024-11-12 Epub Date: 2024-10-31 DOI: 10.1016/j.stemcr.2024.09.009
Shay Kinreich, Anna Bialer-Tsypin, Ruth Viner-Breuer, Gal Keshet, Roni Suhler, Patrick Siang Lin Lim, Tamar Golan-Lev, Ofra Yanuka, Adi Turjeman, Oren Ram, Eran Meshorer, Dieter Egli, Atilgan Yilmaz, Nissim Benvenisty
{"title":"Genome-wide screening reveals essential roles for HOX genes and imprinted genes during caudal neurogenesis of human embryonic stem cells.","authors":"Shay Kinreich, Anna Bialer-Tsypin, Ruth Viner-Breuer, Gal Keshet, Roni Suhler, Patrick Siang Lin Lim, Tamar Golan-Lev, Ofra Yanuka, Adi Turjeman, Oren Ram, Eran Meshorer, Dieter Egli, Atilgan Yilmaz, Nissim Benvenisty","doi":"10.1016/j.stemcr.2024.09.009","DOIUrl":"10.1016/j.stemcr.2024.09.009","url":null,"abstract":"<p><p>Mapping the essential pathways for neuronal differentiation can uncover new therapeutics and models for neurodevelopmental disorders. We thus utilized a genome-wide loss-of-function library in haploid human embryonic stem cells, differentiated into caudal neuronal cells. We show that essential genes for caudal neurogenesis are enriched for secreted and membrane proteins and that a large group of neurological conditions, including neurodegenerative disorders, manifest early neuronal phenotypes. Furthermore, essential transcription factors are enriched with homeobox (HOX) genes demonstrating synergistic regulation and surprising non-redundant functions between HOXA6 and HOXB6 paralogs. Moreover, we establish the essentialome of imprinted genes during neurogenesis, demonstrating that maternally expressed genes are non-essential in pluripotent cells and their differentiated germ layers, yet several are essential for neuronal development. These include Beckwith-Wiedemann syndrome- and Angelman syndrome-related genes, for which we suggest a novel regulatory pathway. Overall, our work identifies essential pathways for caudal neuronal differentiation and stage-specific phenotypes of neurological disorders.</p>","PeriodicalId":21885,"journal":{"name":"Stem Cell Reports","volume":" ","pages":"1598-1619"},"PeriodicalIF":5.9,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11589199/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142565036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Accelerated mitochondrial dynamics promote spermatogonial differentiation. 线粒体动力学的加速促进了精原细胞的分化。
IF 5.9 2区 医学
Stem Cell Reports Pub Date : 2024-11-12 Epub Date: 2024-10-10 DOI: 10.1016/j.stemcr.2024.09.006
Zhaoran Zhang, Junru Miao, Hanben Wang, Izza Ali, Duong Nguyen, Wei Chen, Yuan Wang
{"title":"Accelerated mitochondrial dynamics promote spermatogonial differentiation.","authors":"Zhaoran Zhang, Junru Miao, Hanben Wang, Izza Ali, Duong Nguyen, Wei Chen, Yuan Wang","doi":"10.1016/j.stemcr.2024.09.006","DOIUrl":"10.1016/j.stemcr.2024.09.006","url":null,"abstract":"<p><p>At different stages of spermatogenesis, germ cell mitochondria differ remarkably in morphology, architecture, and functions. However, it remains elusive how mitochondria change their features during spermatogonial differentiation, which in turn impacts spermatogonial stem cell fate decision. In this study, we observed that mitochondrial fusion and fission were both upregulated during spermatogonial differentiation. As a result, the mitochondrial morphology remained unaltered. Enhanced mitochondrial fusion and fission promoted spermatogonial differentiation, while the deficiency in DRP1-mediated fission led to a stage-specific blockage of spermatogenesis at differentiating spermatogonia. Our data further revealed that increased expression of pro-fusion factor MFN1 upregulated mitochondrial metabolism, whereas DRP1 specifically regulated mitochondrial permeability transition pore opening in differentiating spermatogonia. Taken together, our findings unveil how proper spermatogonial differentiation is precisely controlled by concurrently accelerated and properly balanced mitochondrial fusion and fission in a germ cell stage-specific manner, thereby providing critical insights about mitochondrial contribution to stem cell fate decision.</p>","PeriodicalId":21885,"journal":{"name":"Stem Cell Reports","volume":" ","pages":"1548-1563"},"PeriodicalIF":5.9,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11589200/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142406811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Breaking the burst: Unveiling mechanisms behind fragmented network bursts in patient-derived neurons. 打破爆发:揭示患者神经元碎片化网络爆发背后的机制
IF 5.9 2区 医学
Stem Cell Reports Pub Date : 2024-11-12 Epub Date: 2024-10-03 DOI: 10.1016/j.stemcr.2024.09.001
Nina Doorn, Eva J H F Voogd, Marloes R Levers, Michel J A M van Putten, Monica Frega
{"title":"Breaking the burst: Unveiling mechanisms behind fragmented network bursts in patient-derived neurons.","authors":"Nina Doorn, Eva J H F Voogd, Marloes R Levers, Michel J A M van Putten, Monica Frega","doi":"10.1016/j.stemcr.2024.09.001","DOIUrl":"10.1016/j.stemcr.2024.09.001","url":null,"abstract":"<p><p>Fragmented network bursts (NBs) are observed as a phenotypic driver in many patient-derived neuronal networks on multi-electrode arrays (MEAs), but the pathophysiological mechanisms underlying this phenomenon are unknown. Here, we used our previously developed biophysically detailed in silico model to investigate these mechanisms. Fragmentation of NBs in our model simulations occurred only when the level of short-term synaptic depression (STD) was enhanced, suggesting that STD is a key player. Experimental validation with Dynasore, an STD enhancer, induced fragmented NBs in healthy neuronal networks in vitro. Additionally, we showed that strong asynchronous neurotransmitter release, NMDA currents, or short-term facilitation (STF) can support the emergence of multiple fragments in NBs by producing excitation that persists after high-frequency firing stops. Our results provide important insights into disease mechanisms and potential pharmaceutical targets for neurological disorders modeled using human induced pluripotent stem cell (hiPSC)-derived neurons.</p>","PeriodicalId":21885,"journal":{"name":"Stem Cell Reports","volume":" ","pages":"1583-1597"},"PeriodicalIF":5.9,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11589196/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142376045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Neural crest precursors from the skin are the primary source of directly reprogrammed neurons. 来自皮肤的神经嵴前体是直接重编程神经元的主要来源。
IF 5.9 2区 医学
Stem Cell Reports Pub Date : 2024-11-12 Epub Date: 2024-10-31 DOI: 10.1016/j.stemcr.2024.10.003
Justin J Belair-Hickey, Ahmed Fahmy, Wenbo Zhang, Rifat S Sajid, Brenda L K Coles, Michael W Salter, Derek van der Kooy
{"title":"Neural crest precursors from the skin are the primary source of directly reprogrammed neurons.","authors":"Justin J Belair-Hickey, Ahmed Fahmy, Wenbo Zhang, Rifat S Sajid, Brenda L K Coles, Michael W Salter, Derek van der Kooy","doi":"10.1016/j.stemcr.2024.10.003","DOIUrl":"10.1016/j.stemcr.2024.10.003","url":null,"abstract":"<p><p>Direct reprogramming involves the conversion of differentiated cell types without returning to an earlier developmental state. Here, we explore how heterogeneity in developmental lineage and maturity of the starting cell population contributes to direct reprogramming using the conversion of murine fibroblasts into neurons. Our hypothesis is that a single lineage of cells contributes to most reprogramming and that a rare elite precursor with intrinsic bias is the source of reprogrammed neurons. We find that nearly all reprogrammed neurons are derived from the neural crest (NC) lineage. Moreover, when rare proliferating NC precursors are selectively ablated, there is a large reduction in the number of reprogrammed neurons. Previous interpretations of this paradigm are that it demonstrates a cell fate conversion across embryonic germ layers (mesoderm to ectoderm). Our interpretation is that this is actually directed differentiation of a neural lineage stem cell in the skin that has intrinsic bias to produce neuronal progeny.</p>","PeriodicalId":21885,"journal":{"name":"Stem Cell Reports","volume":" ","pages":"1620-1634"},"PeriodicalIF":5.9,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11589197/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142565073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lineage-specific dynamics of loss of X upregulation during inactive-X reactivation. 无活性-X 再激活过程中 X 缺失上调的特定系动态。
IF 5.9 2区 医学
Stem Cell Reports Pub Date : 2024-11-12 Epub Date: 2024-10-31 DOI: 10.1016/j.stemcr.2024.10.001
Hemant Chandru Naik, Deepshikha Chandel, Sudeshna Majumdar, Maniteja Arava, Runumi Baro, Harshavardhan Bv, Kishore Hari, Parichitran Ayyamperumal, Avinchal Manhas, Mohit Kumar Jolly, Srimonta Gayen
{"title":"Lineage-specific dynamics of loss of X upregulation during inactive-X reactivation.","authors":"Hemant Chandru Naik, Deepshikha Chandel, Sudeshna Majumdar, Maniteja Arava, Runumi Baro, Harshavardhan Bv, Kishore Hari, Parichitran Ayyamperumal, Avinchal Manhas, Mohit Kumar Jolly, Srimonta Gayen","doi":"10.1016/j.stemcr.2024.10.001","DOIUrl":"10.1016/j.stemcr.2024.10.001","url":null,"abstract":"<p><p>In mammals, X chromosome dosage is balanced between sexes through the silencing of one X chromosome in females. Recent single-cell RNA sequencing analysis demonstrated that the inactivation of the X chromosome is accompanied by the upregulation of the active X chromosome (Xa) during mouse embryogenesis. Here, we have investigated if the reactivation of inactive-X (Xi) leads to the loss of Xa upregulation in different cellular or developmental contexts. We find that while Xi reactivation and loss of Xa upregulation are tightly coupled in mouse embryonic epiblast and induced pluripotent stem cells, that is not the case in germ cells. Moreover, we demonstrate that partial reactivation of Xi in mouse extra-embryonic endoderm stem cells and human B cells does not result in the loss of Xa upregulation. Finally, we have established a mathematical model for the transcriptional coordination of two X chromosomes. Together, we conclude that the reactivation of Xi is not always synchronized with the loss of Xa upregulation.</p>","PeriodicalId":21885,"journal":{"name":"Stem Cell Reports","volume":" ","pages":"1564-1582"},"PeriodicalIF":5.9,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11589478/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142565072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Abnormal synaptic architecture in iPSC-derived neurons from a multi-generational family with genetic Creutzfeldt-Jakob disease. 遗传性克雅氏病多代家族 iPSC 衍生神经元的异常突触结构。
IF 5.9 2区 医学
Stem Cell Reports Pub Date : 2024-10-08 Epub Date: 2024-09-26 DOI: 10.1016/j.stemcr.2024.08.010
Aldana D Gojanovich, Nhat T T Le, Robert C C Mercer, Seonmi Park, Bei Wu, Alice Anane, Janelle S Vultaggio, Gustavo Mostoslavsky, David A Harris
{"title":"Abnormal synaptic architecture in iPSC-derived neurons from a multi-generational family with genetic Creutzfeldt-Jakob disease.","authors":"Aldana D Gojanovich, Nhat T T Le, Robert C C Mercer, Seonmi Park, Bei Wu, Alice Anane, Janelle S Vultaggio, Gustavo Mostoslavsky, David A Harris","doi":"10.1016/j.stemcr.2024.08.010","DOIUrl":"10.1016/j.stemcr.2024.08.010","url":null,"abstract":"<p><p>Genetic prion diseases are caused by mutations in PRNP, which encodes the prion protein (PrP<sup>C</sup>). Why these mutations are pathogenic, and how they alter the properties of PrP<sup>C</sup> are poorly understood. We have consented and accessed 22 individuals of a multi-generational Israeli family harboring the highly penetrant E200K PRNP mutation and generated a library of induced pluripotent stem cells (iPSCs) representing nine carriers and four non-carriers. iPSC-derived neurons from E200K carriers display abnormal synaptic architecture characterized by misalignment of postsynaptic NMDA receptors with the cytoplasmic scaffolding protein PSD95. Differentiated neurons from mutation carriers do not produce PrP<sup>Sc</sup>, the aggregated and infectious conformer of PrP, suggesting that loss of a physiological function of PrP<sup>C</sup> may contribute to the disease phenotype. Our study shows that iPSC-derived neurons can provide important mechanistic insights into the pathogenesis of genetic prion diseases and can offer a powerful platform for testing candidate therapeutics.</p>","PeriodicalId":21885,"journal":{"name":"Stem Cell Reports","volume":" ","pages":"1474-1488"},"PeriodicalIF":5.9,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11561462/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142354092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
SMAD3 mediates the specification of human induced pluripotent stem cell-derived epicardium into progenitors for the cardiac pericyte lineage. SMAD3介导人类诱导多能干细胞衍生的心外膜向心脏周细胞系祖细胞的分化。
IF 5.9 2区 医学
Stem Cell Reports Pub Date : 2024-10-08 Epub Date: 2024-09-26 DOI: 10.1016/j.stemcr.2024.08.008
Yutaro Miyoshi, Antonio Lucena-Cacace, Yu Tian, Yasuko Matsumura, Kanae Tani, Misato Nishikawa, Megumi Narita, Takeshi Kimura, Koh Ono, Yoshinori Yoshida
{"title":"SMAD3 mediates the specification of human induced pluripotent stem cell-derived epicardium into progenitors for the cardiac pericyte lineage.","authors":"Yutaro Miyoshi, Antonio Lucena-Cacace, Yu Tian, Yasuko Matsumura, Kanae Tani, Misato Nishikawa, Megumi Narita, Takeshi Kimura, Koh Ono, Yoshinori Yoshida","doi":"10.1016/j.stemcr.2024.08.008","DOIUrl":"10.1016/j.stemcr.2024.08.008","url":null,"abstract":"<p><p>Understanding the molecular mechanisms of epicardial epithelial-to-mesenchymal transition (EMT), particularly in directing cell fate toward epicardial derivatives, is crucial for regenerative medicine using human induced pluripotent stem cell (iPSC)-derived epicardium. Although transforming growth factor β (TGF-β) plays a pivotal role in epicardial biology, orchestrating EMT during embryonic development via downstream signaling through SMAD proteins, the function of SMAD proteins in the epicardium in maintaining vascular homeostasis or mediating the differentiation of various epicardial-derived cells (EPDCs) is not yet well understood. Our study reveals that TGF-β-independent SMAD3 expression autonomously predicts epicardial cell specification and lineage maintenance, acting as a key mediator in promoting the angiogenic-oriented specification of the epicardium into cardiac pericyte progenitors. This finding uncovers a novel role for SMAD3 in the human epicardium, particularly in generating cardiac pericyte progenitors that enhance cardiac microvasculature angiogenesis. This insight opens new avenues for leveraging epicardial biology in developing more effective cardiac regeneration strategies.</p>","PeriodicalId":21885,"journal":{"name":"Stem Cell Reports","volume":" ","pages":"1399-1416"},"PeriodicalIF":5.9,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11561457/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142354106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Scaled and efficient derivation of loss-of-function alleles in risk genes for neurodevelopmental and psychiatric disorders in human iPSCs. 在人类 iPSCs 中大规模、高效地衍生神经发育和精神疾病风险基因的功能缺失等位基因。
IF 5.9 2区 医学
Stem Cell Reports Pub Date : 2024-10-08 Epub Date: 2024-09-12 DOI: 10.1016/j.stemcr.2024.08.003
Hanwen Zhang, Ada McCarroll, Lilia Peyton, Sol Díaz de León-Guerrerro, Siwei Zhang, Prarthana Gowda, David Sirkin, Mahmoud ElAchwah, Alexandra Duhe, Whitney G Wood, Brandon Jamison, Gregory Tracy, Rebecca Pollak, Ronald P Hart, Carlos N Pato, Jennifer G Mulle, Alan R Sanders, Zhiping P Pang, Jubao Duan
{"title":"Scaled and efficient derivation of loss-of-function alleles in risk genes for neurodevelopmental and psychiatric disorders in human iPSCs.","authors":"Hanwen Zhang, Ada McCarroll, Lilia Peyton, Sol Díaz de León-Guerrerro, Siwei Zhang, Prarthana Gowda, David Sirkin, Mahmoud ElAchwah, Alexandra Duhe, Whitney G Wood, Brandon Jamison, Gregory Tracy, Rebecca Pollak, Ronald P Hart, Carlos N Pato, Jennifer G Mulle, Alan R Sanders, Zhiping P Pang, Jubao Duan","doi":"10.1016/j.stemcr.2024.08.003","DOIUrl":"10.1016/j.stemcr.2024.08.003","url":null,"abstract":"<p><p>Translating genetic findings for neurodevelopmental and psychiatric disorders (NPDs) into actionable disease biology would benefit from large-scale and unbiased functional studies of NPD genes. Leveraging the cytosine base editing (CBE) system, we developed a pipeline for clonal loss-of-function (LoF) allele mutagenesis in human induced pluripotent stem cells (hiPSCs) by introducing premature stop codons (iSTOP) that lead to mRNA nonsense-mediated decay (NMD) or protein truncation. We tested the pipeline for 23 NPD genes on 3 hiPSC lines and achieved highly reproducible, efficient iSTOP editing in 22 genes. Using RNA sequencing (RNA-seq), we confirmed their pluripotency, absence of chromosomal abnormalities, and NMD. Despite high editing efficiency, three schizophrenia risk genes (SETD1A, TRIO, and CUL1) only had heterozygous LoF alleles, suggesting their essential roles for cell growth. We found that CUL1-LoF reduced neurite branches and synaptic puncta density. This iSTOP pipeline enables a scaled and efficient LoF mutagenesis of NPD genes, yielding an invaluable shareable resource.</p>","PeriodicalId":21885,"journal":{"name":"Stem Cell Reports","volume":" ","pages":"1489-1504"},"PeriodicalIF":5.9,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11561461/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142295962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Astrocytes originated from neural stem cells drive the regenerative remodeling of pathologic CSPGs in spinal cord injury. 源自神经干细胞的星形胶质细胞推动了脊髓损伤中病理性 CSPG 的再生重塑。
IF 5.9 2区 医学
Stem Cell Reports Pub Date : 2024-10-08 Epub Date: 2024-09-19 DOI: 10.1016/j.stemcr.2024.08.007
Seyed Mojtaba Hosseini, Shiva Nemati, Soheila Karimi-Abdolrezaee
{"title":"Astrocytes originated from neural stem cells drive the regenerative remodeling of pathologic CSPGs in spinal cord injury.","authors":"Seyed Mojtaba Hosseini, Shiva Nemati, Soheila Karimi-Abdolrezaee","doi":"10.1016/j.stemcr.2024.08.007","DOIUrl":"10.1016/j.stemcr.2024.08.007","url":null,"abstract":"<p><p>Neural degeneration is a hallmark of spinal cord injury (SCI). Multipotent neural precursor cells (NPCs) have the potential to reconstruct the damaged neuron-glia network due to their tri-lineage capacity to generate neurons, astrocytes, and oligodendrocytes. However, astrogenesis is the predominant fate of resident or transplanted NPCs in the SCI milieu adding to the abundant number of resident astrocytes in the lesion. How NPC-derived astrocytes respond to the inflammatory milieu of SCI and the mechanisms by which they contribute to the post-injury recovery processes remain largely unknown. Here, we uncover that activated NPC-derived astrocytes exhibit distinct molecular signature that is immune modulatory and foster neurogenesis, neuronal maturity, and synaptogenesis. Mechanistically, NPC-derived astrocytes perform regenerative matrix remodeling by clearing inhibitory chondroitin sulfate proteoglycans (CSPGs) from the injury milieu through LAR and PTP-σ receptor-mediated endocytosis and the production of ADAMTS1 and ADAMTS9, while most resident astrocytes are pro-inflammatory and contribute to the pathologic deposition of CSPGs. These novel findings unravel critical mechanisms of NPC-mediated astrogenesis in SCI repair.</p>","PeriodicalId":21885,"journal":{"name":"Stem Cell Reports","volume":" ","pages":"1451-1473"},"PeriodicalIF":5.9,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11561464/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142295959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Guidelines for managing and using the digital phenotypes of pluripotent stem cell lines. 多能干细胞系数字表型的管理和使用指南。
IF 5.9 2区 医学
Stem Cell Reports Pub Date : 2024-10-08 Epub Date: 2024-09-26 DOI: 10.1016/j.stemcr.2024.08.009
Christine A Wells, Anke Guhr, Amos Bairoch, Ying Chen, Mengqi Hu, Peter Löser, Tenneille E Ludwig, Nancy Mah, Sabine C Mueller, Andrea E M Seiler Wulczyn, Stefanie Seltmann, Bella Rossbach, Andreas Kurtz
{"title":"Guidelines for managing and using the digital phenotypes of pluripotent stem cell lines.","authors":"Christine A Wells, Anke Guhr, Amos Bairoch, Ying Chen, Mengqi Hu, Peter Löser, Tenneille E Ludwig, Nancy Mah, Sabine C Mueller, Andrea E M Seiler Wulczyn, Stefanie Seltmann, Bella Rossbach, Andreas Kurtz","doi":"10.1016/j.stemcr.2024.08.009","DOIUrl":"10.1016/j.stemcr.2024.08.009","url":null,"abstract":"<p><p>Each pluripotent stem cell line has a physical entity as well as a digital phenotype, but linking the two unambiguously is confounded by poor naming practices and assumed knowledge. Registration gives each line a unique and persistent identifier that links to phenotypic data generated over the lifetime of that line. Registration is a key recommendation of the 2023 ISSCR Standards for the use of human stem cells in research. Here we consider how community adoption of stem cell line registration could facilitate the establishment of integrated digital phenotypes of specific human pluripotent stem cell (hPSC) lines.</p>","PeriodicalId":21885,"journal":{"name":"Stem Cell Reports","volume":" ","pages":"1369-1378"},"PeriodicalIF":5.9,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11561460/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142354105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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